I. (ˈ)me]z, (ˈ)mē], ]s+\ adjective
Etymology: mes- + ethmoid, adjective
: located in the middle of the ethmoid region : being or relating to a median cartilaginous or bony element of the ethmoidal region that generally forms the greater part of the nasal septum
II. noun
Etymology: mes- + ethmoid, n.
: a mesethmoid bone or cartilage